Effect of Nitrogen and Sulfur Fertilizers on Growth and Yield of Canola

Abstract

Abstract For the purpose of determining the impact of three levels of nitrogen fertilizer (0, 60, and 120 kg.ha-1) and sulfur fertilizer (0, 40, and 60 kg.ha-1) on production and growth indicators (number of leaves, number of branches, chlorophyll pigments, and fresh and dry weights), a field experiment was carried out during the winter season (2021/2022) in the fields of Al-Diwaniyah Province, Ministry of Agriculture, Diwaniyah Agriculture Directorate, Al-Nouriyah Forest Division. Means were compared using the least significant difference test (LSD) at a 0.05 level of probability. In a factorial experiment employing a wholly randomized block design with three replications, treatment combinations were allocated among factors. The most important results obtained are that the 120 kg N ha-1 treatment recorded the highest means for plant height, number of branches, number of leaves and fresh weight, while the 60 kg N ha-1 treatment recorded the highest means for dry weight and total chlorophyll. As for the yield and its components, the 60 kg N ha-1 treatment was significantly excelled and recorded the highest means in the number of pods, the number of seeds, the weight of 200 seeds, grain yield, and dry matter yield, while the 120 kg N ha-1 treatment recorded the highest means in pod length. The treatment with 60 kg S ha-1 significantly affected all vegetative traits and yield traits studied except for the trait of 200 seed weight, which had the highest average when adding 40 kg S ha-1.